Transnational Jihadism’s Persistent Aggregation Problem: Eight Years On

In 2018, scholar Barak Mendelsohn published “Bound to Fail: Transnational Jihadism and the Aggregation Problem,” arguing that groups like al-Qaeda and the Islamic State would continue struggling to convert local gains into a durable caliphate. This dynamic, he contended, allowed counterterrorism forces to contain the threat without large-scale U.S.-led military interventions. Eight years later, Mendelsohn revisits his thesis to assess whether the landscape has shifted.

Image: Adam Jones/Flickr

The original analysis highlighted the Islamic State’s 2018 call for lone-wolf attacks in the West, noting these efforts consistently failed to generate the self-sustaining momentum envisioned by strategist Abu Musab al-Suri. Asked whether individual jihad has achieved strategic value since, Mendelsohn maintains his position: lone-wolf terrorism remains of limited strategic utility for transnational movements because it fails to recruit a sufficient cadre of willing perpetrators to sustain a campaign.

Rather than inspiring waves of new attackers, such incidents typically yield no positive consequences for the jihadist cause beyond immediate casualties. This pattern persists. The devastating 2025 attack at Bondi Beach in Sydney, while horrific, did not trigger a cascade of copycat operations; instead, it prompted authorities to intensify counterterrorism efforts. In the United States, the impact is further diluted by the frequency of mass shootings. However, Mendelsohn acknowledges a critical exception: a well-positioned lone actor can produce strategic effects. He cites the case of a flydubai pilot who attempted to crash an airliner into Ben Gurion Airport in Israel. Had that attempt succeeded, the strategic repercussions would have been profound, demonstrating that while aggregation generally fails, high-leverage individual actions remain a distinct danger.

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